The guy

“We’ve been staring at the compound for months trying to figure out for sure whether we had enough to go with,” one official said. Operatives have “been working this target for years, years, years. They finally found the guy who led to the guy who led to the guy who led to the guy, and this is it.”

http://www.washingtonpost.com/politics/osama-bin-laden-is-killed-by-us-forces-in-pakistan/2011/05/01/AFXMZyVF_story_1.html